Venus and Mercury to scale in full color from the latest NASA space imaging.
To extend this set to include all of the inner planets, the matching-scale Earth, moon, and Mars are available here:
Venus: 47mm (1.85 inches) diameter
Mercury: 19mm (0.75 inches) diameter
Scale: 1 : 250000000
The Venus globe is hollow, with a 12mm (1/2 inch) hole at the south pole, giving a flat bottom on which to sit without rolling, but also comes with a matching cap/plug to seal that hole, to form a full sphere. (Mercury is solid)
The parts are shipped to you directly from the 3D-printer, and so the package unfortunately does not include labels or instructions.
Special thanks to NASA / JPL-Caltech, for allowing the use of their planet surface terrain and mapping.